GB262816A - Manufacture of bodies of photographic desensitizing action - Google Patents

Manufacture of bodies of photographic desensitizing action

Info

Publication number
GB262816A
GB262816A GB31549/26A GB3154926A GB262816A GB 262816 A GB262816 A GB 262816A GB 31549/26 A GB31549/26 A GB 31549/26A GB 3154926 A GB3154926 A GB 3154926A GB 262816 A GB262816 A GB 262816A
Authority
GB
United Kingdom
Prior art keywords
bodies
photographic
manufacture
nitrobenzaldehyde
desensitizing action
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB31549/26A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB262816A publication Critical patent/GB262816A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/14—Styryl dyes
    • C09B23/145—Styryl dyes the ethylene chain carrying an heterocyclic residue, e.g. heterocycle-CH=CH-C6H5
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/36—Desensitisers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Quinoline Compounds (AREA)

Abstract

262,816. I. G. Farbenindustrie Akt.- Ges. Dec. 11, 1925, [Convention date]. Quinoline derivatives.-Bodies having a desensitizing action upon silver bromide emulsions and on photographic plates covered with such emulsions are made by condensing an alkyl sulphate of a p-alkyloxyquinaldine with m-nitrobenzaldehyde. In an example, p-ethoxyquinaldine-methyl sulphate and m-nitrobenzaldehyde are dissolved in alcohol and boiled under reflux with glacial acetic acid and copellidine; the product, which forms yellowish crystals, is purified by washing with acetone.
GB31549/26A 1925-12-11 1926-12-13 Manufacture of bodies of photographic desensitizing action Expired GB262816A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE262816X 1925-12-11

Publications (1)

Publication Number Publication Date
GB262816A true GB262816A (en) 1927-11-03

Family

ID=5981245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31549/26A Expired GB262816A (en) 1925-12-11 1926-12-13 Manufacture of bodies of photographic desensitizing action

Country Status (3)

Country Link
US (1) US1653314A (en)
FR (1) FR626110A (en)
GB (1) GB262816A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425772A (en) * 1941-09-03 1947-08-19 Du Pont Polymeric cyanine dyestuffs
US2719150A (en) * 1951-01-16 1955-09-27 Hoffmann La Roche Process for the manufacture of octahydroisoquinoline derivatives and intermediates therein
US2794802A (en) * 1954-06-04 1957-06-04 Gen Aniline & Film Corp Synthesis of pinakryptol yellow

Also Published As

Publication number Publication date
FR626110A (en) 1927-08-30
US1653314A (en) 1927-12-20

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